. >> suarez: doctor stephen stahl is an expert in the use of medications for treating mental illness. >> i think that there is a crisis in the delivery of mental health care in the army. i think the overall care that the soldiers were getting for psychological wounds was substandard. >> suarez: a year and a half ago, dr. stahl taught health care providers at fort hood the latest in best practices. just months later, army psychiatrist major nidal hasan allegedly went on a shooting rampage, killing 13 and wounding dozens more. in the aftermath of the killings, it was reported that major hasan was kept on staff in spite of concerns about his abilities because there are so few psychiatrists in the army. dr. stahl says that, while they are understaffed, they are doing heroic work. he says the 34 psychiatrists, psychologists and other counselors at the base are overwhelmed by the demand for their services. besides treating the soldiers in the transition brigade, they also have to provide services to 50,000 to 60,000 other soldiers and their families. one of fort hood's top psychiatric nurse